/Engine/Source/Runtime/Engine/Classes/Engine/AssetManager.h
Loads all assets of a given type, useful for cooking
virtual [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [FStreamableHandle](API\Runtime\Engine\Engine\FStreamableHandle) > LoadPrimaryAssetsWithType ( [FPrimaryAssetType](API\Runtime\CoreUObject\UObject\FPrimaryAssetType) PrimaryAssetType, const [TArray](API\Runtime\Core\Containers\TArray)< [FName](API\Runtime\Core\UObject\FName) > & LoadBundles, FStreamableDelegate DelegateToCall, TAsyncLoadPriority Priority )